Lock for freight-car doors



(ModeL) A. B. BARNARD.

LOOK FOR FREIGHT GAR DOORS.

Patented Jan. 26, 1-886 ZVTLZrzemrew I i UNITED ST'ATES Pn'rnivr OFFICE.

ANDREWV B. BARNARD, OF KANSAS CITY, MISSOURI.

LOOK FOR FREIGHT-CAR DOORS.

SPECIFICATION forming part of Letters Patent NO. 334,840, dated January26, 1886.

Application filed July 14, 1885. Serial No. 171,5?0.

To all whom it may concern.-

Be it known that I, ANDREW B. BARNARD, a citizen of the United States,residingin Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful Improvement in Looks for Freight-OarDoors, of which the following is aspecification.

In that class of locks for freight-car doors shown in the patent to meof March 25, 1884, No. 295,514, the handle end of the bolt and theseal-carrying eye project outwardly from the front of the door, wherethey are at all times exposed. to injury by contact with standingobjects which may happen to be too near the track, or by teams movingloads to and from cars; and it is no infrequent occurrence with locks ofthat and other similar construct-ions that they are broken or rendereduseless. To relieve thelock of this objection 1 have'devised my presentinvention,wherein all the parts of the lock are or may be located backof the outer plane of the door, or substantially so.

My invention consists in the combination, with a freight-car door, of alock inserted in the rear edge thereof, and provided with anoperating-arm located outside such rear edge, both the lock and itsoperating arm lying substantiall y inside the outer face of the door,substantially as specified.

The invention further consists in a bolt adapted to be oscillated and tobe inserted edgewise in the car-door, having alocking projection soarranged as to sustain the bolt by gravity either in the locked orunlocked position, as desired.

The invention further consists in the novel details of constructionhereinafter fully explained.

In the accompanying drawings, which form a part of this specification,Figure 1 is a section of a car door and side, the door being locked bymy improved lock. Fig. 2 is a partial edge elevation of the door. Fig.5E a perspective of the bolt. Figs. 4. and 5 are like views of the innerand outer caps forming the casing of thebolt, and Fig. 6 is a partialelevation of'a door provided with my lock and seal.

In said drawings, A represents the car side, and B the door.

0 represents the oscillating bolt carrying a locking projection, c, andan outer arm, 0', whereby it may be rotated. This bolt is let (ModeL)into the door from the rear edge thereof, the recess in the door beingformed in the inner rear corner, and the bolt is confined in such recessby the plate D, and this plate D is secured by'rivets d passing throughit to the other side of the door, and also through the cap or L'shapedplate D, secured to the exterior of the door.

The locking projection is lowered into and raised out of engagement withthe car-side by the oscillation of the bolt, and itis made heavy enough,so that when in the lowered or locked position it will outbalance theoperating-arm, thereby enabling it to act as a weight in holding thebolt against oscillation. Thatportion of the recess in the door intowhich the projection swings when it is withdrawn from looking engagementis formed to permit the projection to swing past the plane of its centerof oscillation, (see broken lines, Fig. 2,) so that when thus withdrawnits gravity will re ist oscillation toward the locking position. Theoperating-arm, which extends in the opposite direction from that ofprojection 0, assists in this resistance, as will be obvious from theconstruction shown. By these features of construction I guard againstunlocking of the door when the operating-arm is not secured by a seal,and against accidental locking when the door is closed and the lockingis not desired.

At the extremity of the operating-arm is a seal carrying eye, E, which,when the bolt is turned to the locking position, lies alongside 01' asimilar-stationary eye, E, upon the cap D. Both these eyes are providedwith shoulders 0, whereby the seal S will be supported in a horizontalposition, as shown in Figs. 1 and 6.

The operating parts of my improved lock, it will be noticed, lie whollyor almost wholly within the outer plane of the door, whereby they aresheltered from blows and collisions and not likely to become injured.

The cap D may be let into the door, so as to lie flush therewith, andthearm 0 may be so constructed as not to project, when either opened orclosed, beyond the face of the door. The recesses d in the partsD and I)give room for the bolt.

I claim The combination, with a car-door, of a lock inserted through itsrear edge and provided with an operating-arm located outside such rearedge, both the lock and arm lying inside the outer face of the door,substantially as and for the purpose specified.

2. The combination,with a freight-car door, of a. bolt inserted thereinfrom the rear edge and provided with a locking projection adapted toengage with the car side, and an exterior arm by which the bolt may beoscillated, both projection and arm standing at right angles to thebolt, substantially as specified.

3. The bolt adapted to be oscillated and to be inserted edgewise in acar-door, and provided with a locking projection and an operating-arm,both standing at right angles to the bolt, the former being adapted toact by its weight to resist unlocking, substantially as specified.

{1. The combinati0n,with the car-door, of an oscillating bolt insertedin the .door and provided with a locking projection and operatingarm,the doorbcing recessed to permit the projection to swing past thecenter, substantially as and for the purpose specified.

5. The lock for freight-car doors,consisting fled.

ANDREW B. BARNARD'.

Witnesses:

EDW. L. EVARTS, H. M. MUNDAY.

of the oscillating bolt 0, having the locking

